SU584008A1 - Method of preparing phenyl esters of phosphinic acids - Google Patents
Method of preparing phenyl esters of phosphinic acidsInfo
- Publication number
- SU584008A1 SU584008A1 SU7602382700A SU2382700A SU584008A1 SU 584008 A1 SU584008 A1 SU 584008A1 SU 7602382700 A SU7602382700 A SU 7602382700A SU 2382700 A SU2382700 A SU 2382700A SU 584008 A1 SU584008 A1 SU 584008A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- phenyl esters
- phosphinic acids
- preparing phenyl
- phosphinic
- acids
- Prior art date
Links
Description
Изобретение относитс к области химии фосфорорганических кислот с С-Р св зью, а именно к новому способу получени фениловых эфиров фосфиновых кислот общей формулы Р-ОСбНз где R - этил или rt-бромфенил, R - этил, фенил, п-бромфенил или пхлорфеиил , которые могут найти применение в качестве полупродуктов фосфорорганического синтеза. Известен способ получени эфиров фосфиновых кислот взаимодействием хлоран-гидридов фосфиновых кислот со спиртами в среде органического растворител в присутствии триэтиламина 1. Однако при получении фениловых эфи.ров фосфиновых кислот требуетс продолжительное нагревание, более 30 ч. Наиболее близким к описываемому изобретению по технической сущности и достигаемому результату вл етс способ получени фениловых эфиров фосфиновых кислот, который заключаетс в том, что фосфинистую кислоту подвергают взаимодействию с фенолом в присутствии четыреххлористого углерода и триэтиламина в среде органического растворител при температуре 10-20°С ,1. К недостаткам этого способа следует отнести труднодоступность фосфинистых кислот, которые .могут быть получены с помощью магнийорганического синтеза или методом кислого гидролиза труднодоступных эфиров, а также необходимость применени триэтиламина , фильтраци продуктов реакпии дл отделени их от хлоргидрата триэтиламина, огнеопасность процесса при применении летучих органических растворителей. Цель изобретени - упрощение процесса получени фениловых эфиров фосфиновых кислот. Эта цель достигаетс способом, который заключаетс в том, что фениловый эфир фосфинистой кислоты подвергают взаимодействию с бензальдегидом в присутствии четыреххлористого углерода при температуре 60- 76°С. Отличительным признаком способа вл етс использование в качестве фосфорорганического соединени фенилового эфира фосфинистой кислоты, который подвергают взаимодействию с бензальдегидом при температуре 60- 76°С. Исходные фениловые эфиры фосфинистых кислот вл ютс доступными соединени ми, легко могут быть получены из хлорфосфиновThe invention relates to the field of chemistry of organophosphorus acids with a C-P bond, namely to a new method for the preparation of phenyl esters of phosphinic acids of the general formula P-OSbN3, where R is ethyl or rt-bromophenyl, R is ethyl, phenyl, p-bromophenyl or chlorophyll, which can be used as intermediates of organophosphorus synthesis. A known method for the preparation of phosphinic acid esters by the interaction of phosphinic acid chlorides with alcohols in an organic solvent medium in the presence of triethylamine 1. However, the preparation of phenyl ethers of phosphinic acids requires prolonged heating, more than 30 hours. The closest to the described invention is technically and achievable The result is a process for the preparation of phenyl esters of phosphinic acids, which consists in the fact that phosphinic acid is reacted with phenol in utstvii carbon tetrachloride and triethylamine in an organic solvent at a temperature of 10-20 ° C, 1. The disadvantages of this method include the inaccessibility of phosphine acids, which can be obtained by organo-magnesium synthesis or by acid hydrolysis of difficult-to-access ethers, as well as the need to use triethylamine, filtering the reaction products to separate them from triethylamine hydrochloride, the flammable process when using volatile organic solvents. The purpose of the invention is to simplify the process for the preparation of phosphinic acid phenyl esters. This goal is achieved in a manner that involves reacting phosphonic acid phenyl ester with benzaldehyde in the presence of carbon tetrachloride at a temperature of 60-76 ° C. A distinctive feature of the method is the use of phenyl ester of phosphinic acid as an organophosphorus compound, which is reacted with benzaldehyde at a temperature of 60-76 ° C. The starting phenyl esters of phosphinic acids are available compounds, can be easily obtained from chlorophosphines
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU7602382700A SU584008A1 (en) | 1976-07-07 | 1976-07-07 | Method of preparing phenyl esters of phosphinic acids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU7602382700A SU584008A1 (en) | 1976-07-07 | 1976-07-07 | Method of preparing phenyl esters of phosphinic acids |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU584008A1 true SU584008A1 (en) | 1977-12-15 |
Family
ID=20669374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU7602382700A SU584008A1 (en) | 1976-07-07 | 1976-07-07 | Method of preparing phenyl esters of phosphinic acids |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU584008A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015025904A1 (en) * | 2013-08-22 | 2015-02-26 | 株式会社Adeka | Phosphorus-containing compound, and curable epoxy resin composition containing same |
| WO2016121750A1 (en) * | 2015-01-29 | 2016-08-04 | 株式会社Adeka | Flame-retardant epoxy resin composition, prepreg formed using this, and laminate plate |
-
1976
- 1976-07-07 SU SU7602382700A patent/SU584008A1/en active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015025904A1 (en) * | 2013-08-22 | 2015-02-26 | 株式会社Adeka | Phosphorus-containing compound, and curable epoxy resin composition containing same |
| CN105452263A (en) * | 2013-08-22 | 2016-03-30 | 株式会社艾迪科 | Phosphorus-containing compound, and curable epoxy resin composition containing same |
| JPWO2015025904A1 (en) * | 2013-08-22 | 2017-04-27 | 株式会社Adeka | Phosphorus-containing compound and curable epoxy resin composition containing the same |
| US10562924B2 (en) | 2013-08-22 | 2020-02-18 | Adeka Corporation | Phosphorus-containing compound, and curable epoxy resin composition containing same |
| WO2016121750A1 (en) * | 2015-01-29 | 2016-08-04 | 株式会社Adeka | Flame-retardant epoxy resin composition, prepreg formed using this, and laminate plate |
| US10421261B2 (en) | 2015-01-29 | 2019-09-24 | Adeka Corporation | Flame-retardant epoxy resin composition, prepreg and laminated plate using the same |
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